m30833fjgp Renesas Electronics Corporation., m30833fjgp Datasheet - Page 437

• Manufacturer Part Number: m30833fjgp
• Description: Renesas 16/32-bit Single-chip Microcomputer M16c Family / M32c/80 Series
• Manufacturer: Renesas Electronics Corporation.

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Figure 25.15 Circuit Application in Standard Serial I/O Mode 1
Figure 25.16 Circuit Application in Standard Serial I/O Mode 2
2
0
1
25.4.3 Precautions in Standard Serial I/O Mode
25.4.4 Circuit Application in Standard Serial I/O Mode
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• Serial I/O mode cannot be used after boot ROM area is written in parallel I/O mode.
• If an user reset signal becomes "L" in serial I/O mode, break connection between the user reset signal
Figure 25.15 shows an example of a circuit application in standard serial I/O mode 1. Figure 25.16 shows
an example of a circuit application in serial I/O mode 2. Refer to the user's manual of your serial program-
mer to handle pins controlled by the serial programmer.
0
1
3
0
and the RESET pin by using, for example, a jumper selector.
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3 .
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, 1
3
p
NOTES:
1
___________
2
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1. In this example, a selector is used to switch between single-chip mode and standard serial I/O
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NOTES:
0
0
mode.
3
1. Control pins and external circuitry vary with serial programmer. Refer to the user's manual included
2. In this example, a selector is used to switch between single-chip mode and standard serial I/O
3. In standard serial I/O mode 1, if the user reset signal becomes "L" while in serial I/O mode, break
6
2
with the serial programmer.
mode.
connection between the user reset signal and the RESET pin using, for example, a jumper selector.
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BUSY Output
Monitor Output
, 3
Data Output
Reset Input
Clock Input
Data Input
Data Output
Data Input
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3
2
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4
3
8
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8
User Reset
Signal
BUSY
RxD
RESET
T
SCLK
BUSY
SCLK
R
T
CNVss
P5
P5
X
X
D
X
D
0
5
D
(CE)
(EPM)
Microcomputer
Microcomputer
P5
P5
CNVss
5
(EPM)
0
(CE)
NMI
NMI
25. Flash Memory Version